New Product

Infineon Technologies Merus Integrated Audio Ics | New Product Brief

July 31, 2019 by Mouser Electronics

These use multilevel switching to improve efficiency, power density, and audio performance.

This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.

Infineon Technologies Merus Integrated Audio Ics

Infineon Technologies MERUS low power class D amplifier solutions use multilevel switching to improve efficiency, power density, and audio performance compared to traditional class D amplifiers. 

MERUS amplifiers produce outputs using up to 5 voltage levels instead of only 2, and this increased granularity keeps power loss extremely low with almost no switching loss at idle, along with very low THD+N values. Amplifiers are available with 40W or 80W stereo outputs and digital or analog inputs, with digital input versions compliant with HiRes Audio requirements.

MERUS low power class D amplifiers operate from a wide supply voltage and have a comprehensive protection scheme. They also have a filterless topology, eliminating bulky LC output filters for a simpler design and smaller footprint.

  • Multi-level output
    • 3-level and 5-level modulation
    • Idle power dissipation <160mW
    • THD+N <0.007%
  • Flexibility
    • 2x40W or 2x80W max peak power
    • Digital or analog input
  • Digital input versions (MA12040P, MA12070P) comply with HiRes Audio requirements
  • Wide supply voltage
    • 40W: 4V-18V
    • 80W: 4V-26V
  • Filterless topology
    • Eliminates bulky output filters
    • Simpler design, smaller footprint

More Information

New Industry Products are a form of content that allows industry partners to share useful news, messages, and technology with All About Circuits readers in a way editorial content is not well suited to. All New Industry Products are subject to strict editorial guidelines with the intention of offering readers useful news, technical expertise, or stories. The viewpoints and opinions expressed in New Industry Products are those of the partner and not necessarily those of All About Circuits or its writers.